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[BUG]: Could not respond to message. 503 status code (no body) #4812

@lucas150670

Description

@lucas150670

How are you running AnythingLLM?

AnythingLLM desktop app

What happened?

When I tried to run AnythingLLM v1.9.1 on Windows 11 25H2 ARM (10.0.26200.7462) on Acer SFA11-14 (X Elite X1E-78-100), with models download:

  • QNN/llama_v3_1_8b_chat_8k
  • QNN/llama_v3_2_3b_chat_16k
  • QNN/phi_3_5_mini_instruct_4k

All these models can reproduce this error.
Here is the log for the error:

backend-2025-12-28.log
collector-2025-12-28.log

Are there known steps to reproduce?

  • Open the app
  • Parse something into the input box
  • Click "Send"

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